/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/PBDCollisionConstraints.h
Apply modifiers to the constraints and specify which constraints should be disabled. You would probably call this in the PostComputeCallback. Prefer this to calling RemoveConstraints in a loop, so you don't have to worry about constraint iterator/indices changing.
void ApplyCollisionModifier ( const [TArray](API\Runtime\Core\Containers\TArray)< [ISimCallbackObject](API\Runtime\Chaos\Chaos\ISimCallbackObject) * > & CollisionModifiers, [FReal](API\Runtime\ChaosCore\Chaos\FReal) Dt )